HPLC法同时测定西诃蜜膏中没食子酸和鞣花酸的含量
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篇名: HPLC法同时测定西诃蜜膏中没食子酸和鞣花酸的含量
TITLE:
摘要: 目的:建立同时测定西诃蜜膏中没食子酸和鞣花酸含量的方法。方法:采用高效液相色谱法。色谱柱为 X-Bridge C18,流动相为甲醇-乙腈-0.2%磷酸水溶液(梯度洗脱),流速为1.0 ml/min,检测波长为254 nm,柱温为30 ℃,进样量为10 μl。结果:没食子酸和鞣花酸的检测进样量线性范围分别为0.132~0.792、0.108 0~0.648 2 μg(r均为0.999 9);精密度、稳定性、重复性试验的RSD<3%;加样回收率分别为95.15%~99.69%(RSD=1.64%,n=9)、97.24%~100.43%(RSD=1.24%,n=9)。结论:该方法操作简单、结果准确、灵敏度高,可用于西诃蜜膏中没食子酸和鞣花酸的含量测定。
ABSTRACT: OBJECTIVE: To establish a method for simultaneous determination of gallic acid and ellagic acid in Xihe majun ointment. METHODS: HPLC method was performed on the column of X-Bridge C18 with mobile phase of methanol-acetonitrile-0.2% Phosphoric acid solution (gradient elution) at a flow rate of 1.0 ml/min, detection wavelength was 254 nm,detection temperature was 30 ℃, and injection volume was 10 μl. RESULTS: The linear range was 0.132-0.792 μg for gallic acid (r=0.999 9) and 0.108 0-0.648 2 μg for ellagic acid (r=0.999 9); RSDs of precision, stability and reproducibility tests were lower than 3%; recoveries were 95.15%-99.69%(RSD=1.64%,n=9) and 97.24%-100.43%(RSD=1.24%,n=9). CONCLUSIONS: The method is simple, accurate and sensitive, and can be used for the content determination of gallic acid and ellagic acid in Xihe majun ointment.
期刊: 2016年第27卷第18期
作者: 李建梅,买买提·霍吉,希尔艾力·吐尔逊
AUTHORS: LI Jianmei,Mamat HOJA,Xirali TURSUN
关键字: 西诃蜜膏;没食子酸;鞣花酸;高效液相色谱法
KEYWORDS: Xihe majun ointment; Gallic acid; Ellagic acid; HPLC
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